Filming is starting February 12 in Florida, but movie execs are still looking for the fourth girl to star. The plot is about four college girls who rob a restaurant in order to afford their trip to the beach for spring break, and James Franco is also cast.

It should be fun for Selena and Ash to film together -- they've grown closer and have even tweeted each other since hanging out -- Ashley is dating Ryan Good, Justin's former swag coach.